Added javadoc stuff

Author: derNiklaas

src/main/scala/org/codeoverflow/chatoverflow/requirement/parameter/BooleanParameterImpl.scala

@@ -4,6 +4,9 @@ import org.codeoverflow.chatoverflow.api.io.parameter.BooleanParameter
 import org.codeoverflow.chatoverflow.registry.Impl
 import java.lang.Boolean
 
+/**
+  * A parameter holding a boolean value.
+  */
 @Impl(impl = classOf[BooleanParameter])
 class BooleanParameterImpl extends BooleanParameter {
   private var value: Boolean = null

src/main/scala/org/codeoverflow/chatoverflow/requirement/parameter/DoubleParameterImpl.scala

@@ -4,6 +4,9 @@ import org.codeoverflow.chatoverflow.api.io.parameter.DoubleParameter
 import org.codeoverflow.chatoverflow.registry.Impl
 import java.lang.Double
 
+/**
+  * A parameter holding a double value.
+  */
 @Impl(impl = classOf[DoubleParameter])
 class DoubleParameterImpl extends DoubleParameter {
 

src/main/scala/org/codeoverflow/chatoverflow/requirement/parameter/IntegerParameterImpl.scala

@@ -3,6 +3,9 @@ package org.codeoverflow.chatoverflow.requirement.parameter
 import org.codeoverflow.chatoverflow.api.io.parameter.IntegerParameter
 import org.codeoverflow.chatoverflow.registry.Impl
 
+/**
+  * A parameter holding a int value.
+  */
 @Impl(impl = classOf[IntegerParameter])
 class IntegerParameterImpl extends IntegerParameter {
   private var value: Integer = null

src/main/scala/org/codeoverflow/chatoverflow/requirement/parameter/ListParameterImpl.scala

@@ -9,7 +9,9 @@ import org.codeoverflow.chatoverflow.registry.Impl
 
 import scala.collection.mutable.ListBuffer
 
-
+/**
+  * A parameter holding a List<String> value.
+  */
 @Impl(impl = classOf[ListParameter])
 class ListParameterImpl extends ListParameter {
   private var value: List[String] = null